Drinking Water Quality Performance Report

DRINKING WATER QUALITY PERFORMANCE REPORT

July 2015 - June 2016 Contents

Message from the CEO ...... 4

Key statistics ...... 5

Where we sit in the grid...... 6

Our Supply Area...... 7

Water Supply Sources...... 8

Water quality summary...... 10

Your suburb and its water supply region...... 12

Drinking water quality performance...... 14

Microbiological performance in detail...... 15

Chemical performance in detail...... 16

Dayboro...... 16

Kenilworth...... 18

North...... 20

Pine Rivers North...... 22

South...... 24

Unitywater Drinking Water Project Snapshot 2015-2016...... 26

3 Message from the CEO Key statistics

Dear Customers, st DISTRIBUTOR-RETAILER IN SOUTH EAST QUEENSLAND 1 TO ACHIEVE ISO 22000 CERTIFICATION Thank you for taking the time to read our Annual Drinking Water Quality Report. Each year Unitywater publishes this report to provide information about the quality of the drinking water we supply. Once again, I’m pleased to confirm that during 2015-2016 financial year the water supplied to our customers remained of a very high standard and met WATER QUALITY REPORTING SCHEMES all regulatory requirements. 5

Unitywater meets the requirements set by the Queensland Public Health Regulation for drinking water, with 99.95% of all samples free of E. coli, an indicator of possible contamination. Meeting this requirement demonstrates that you 111 WATER RESERVOIRS IN SERVICE can continue to have confidence in the water supplied by Unitywater to your home, school and work place. To maintain that confidence Unitywater sampled and completed approximately 99,000 water tests over the course of the year. Of those only three did not meet an individual guideline. Each of these were investigated promptly and successfully met DRINKING WATER SAMPLE TAPS the guideline when retested. 217

The Board and executive are proud of the work our staff have accomplished in 2015-2016 to improve water quality management for our customers. The key projects undertaken included, an automated tool to process and map 99,000 APPROXIMATE NUMBER OF TESTS PER YEAR customer enquiries, upgrades to disinfection systems throughout the water supply network, the introduction of innovative technology to clean our mains and achieving internationally recognised ISO 22000 accreditation (Food Safety Management Standard). Unitywater became the first distributor-retailer in south east Queensland to achieve certification for its Drinking Water Management System. ISO 22000 certification provides additional assurance to our customers, the business and regulators that we manage water quality to the highest standard. You can find information about these projects within the report.

In this report are further details on the physical and chemical quality of the water we supply.

If you have any questions, or feedback on the content of this report, please do not hesitate to call our customer contact centre on 1300 0 UNITY.

George Theo Chief Executive Officer Unitywater

5 Unitywater Drinking Water Quality Report 2015–16 Where we sit in the grid Our supply area

The south-east Queensland water grid connects the water supplies from the Sunshine Coast, through greater Brisbane and down to the Gold Coast. This arrangement allows Seqwater to move treated ‘bulk’ drinking water from one area to another, reducing the risk of any single source being used up (i.e. during drought conditions).

k r C e COMO i n K i n ek

AD RO IN K IN K More detail on the bulk water supply network can be found here: E I P Lake M

KIN KIN G Cootharaba

O R

N N E http://www.seqwater.com.au/water-supply/supply-network I V COOTHARABA I Coral K R D

I O D Z K A Z O A A R B N A B IS O A R U M A O H L N R Sea a O T o os iv NOOSA NORTH SHORE P O e O r C Regional Map PINBARREN

CRN.RES1

M RINGTAIL CREEK C Lake COORAN K I N Cooroibah N

O D COOROIBAH O A YUR N EE K R OL R F D ES C O C OL POM.RES1 R R E I S V S k POMONA T E y D r in R TWN.RES 1, 2 I b V

g cree k E

N o o s D a Rive NHD.RES 1, 2, 3, 4, 5 EL C OA r M Lake McDonald O O ROY NO O S A R Doonella ST RE WTP Lake NOOSA HEADS E T CRY.RES 1, 2 TINBEERWAH D FEDERAL A O R A S O O D E N V RESERVOIR / TOWER A I I BLACK MOUNTAIN O D R D R N Lake E U Y A S M I H COOROY MOUNTAIN R U Weyba

N E R U E Gympie T S Seqwater L D A A W WATER TREATMENT PLANT O No R E r A M t S AD h O DOONAN U region O O M R M N TH a I- O WTP (Water Treatment Plants) are R r ND U S O o U N K LW o M RIDGEWOOD NI c EU TA PGN.TWR1 Y E h IN R -K PGN.RES1

DI y R

I R

N N O owned and operated by SEQWater. U EUM.RES36 i A G UM D E v

Seqwater manage the catchments, dams and C e R EERWAH VALE r PEREGIAN BEACH E E D K A VERRIERDALE R O B O R U A N B D I Y E PSP.RES43 WATER TRUNK MAIN S A R Y O A production of bulk drinking water for the SEQ W A D BELLI PARK R NORTH ARM O B T r O

B o M wn R E s U C N r C NPI SUPPLY MAIN eek I E H

S H Cooloolabin YANDINA CREEK N W region U CLM.RES 16, 17, 33 COOLOOLABIN BRIDGES Y NPI is owned and operated by SEQWater. Dam Yan S di K ROAD na E ABIN C r N O L e COOLUM BEACH OLO ek I R L C O W C o ool O YND.RES37 u c m

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KULANGOOR W MARCOOLA KEN.RES20 R KEN.RES21 W A Y Poona A BLI.RES19 BLI BLI Y Dam PARKLANDS COOLABINE Image Flat BLI.RES34 BLI.RES48 Kenilworth KUREELPA WTP BLI.RES18 WTP AD RO NAM.RES6 MUDJIMBA ON B T R LE NAM.RES7 BLI BLI RO P U A KENILWORTH A D M MAPLETON C R- D U NAM.RES30 E A OB O ROSEMOUNT V I O B F H I BI M D TWIN WATERS R A L BURNSIDE NAM.RES9 W LO O N A W

A Y W D X NAM.RES35 AY T KIDAMAN CREEK O DDILLIBAH ROAD N DULONG DI CAMBROON D R NAM.RES11 NAM.RES44 IV

D NAM.RES14 OBI OBI E R MRD.RES26

H WEST WOOMBYE FLAXTON KULUIN T

R k ee WOOMBYE BUD.RES23 O Cr W P i e WBY.RES15 ALX.RES27, 28 L et r I BUD.RES32

E KAW.RES17

K - MONS

Y BUD.RES31

N HUNCHY CURRAMORE B E R L U A C BUD.RES24, 25 E M MONTVILLE BUDERIM MOOLOOLABA PALMWOODS H W Y Baroon CHEVALLUM Pocket D R KAWANA WATERS

Dam O TAN.RES41 WITTA L LANDERS SHOOT MOUNTAIN CREEK D ELAMAN CREEK U SIPPY DOWNS WARANA E TANAWHA Landershute D EUDLO R WTP ILKLEY E CONONDALE NORTH MALENY L IL V T N O Tan M g - k

PALMVIEW n

Y i N R

NICKLIN WAY MAL.RES14 E DIAMOND VALLEY L REESVILLE A MERIDAN PLAINS MAL.TWR15 M MLL.RES16 GLENVIEW MLL.RES8 M RD C A a ER LO r IV UN r y R DR A

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Y C R N O U LBH.RES11 CAL.RES 5, 6, 7 r E G e L H- A M e ALE k M CROHAMHURST NY RD CAL.RES 18, 19 r Y ve W Ri H CALOUNDRA WEST y E le BOOROOBIN n C a Y t MOUNT MELLUM U BELLS CREEK S A M R A W B LE N N Y I -S T A W NL E R Y PE I RIVE AC HES TE R RD R RD E

R E u T Bribie Island BELLTHORPE nn S STP k in Cre e g s C CEDARTON PEACHESTER B ll r e e e BEW.RES 1 ,2 Somerset k

D A COMMISSIONERS FLAT O region R H A

W COOCHIN CREEK R E E k GLH.RES1 B STANMORE e - e Y r O GLH.RES2 C C L y I

n K o t GLASS HOUSE J OHNSTON S MOUNTAINS RD k G UILAR HIG e BRIBIE ISLAND NORTH STONY CREEK D'A HW re AY wr in C C o ek oo n Blackrock C re

BEERBURRUM O Unitywater n Woodford Tower e M BBM.RES 1, 2 Queensland Urban Utilities D i 'A le G C U re Bee NEURUM I e rbu L k rru m A Chambers Road C R re ek G las s H Mo IG unt WELSBY H D'AGUILAR ai n W C BRIBIE A re Unitywater distributes water to the Noosa, Queensland Urban Utilities distributes water to the Y ek ISLAND McLeod Lane Res E DONNYBROOK ELIMBAH li m W DELANEYS CREEK BRACALBA b a r i h g S ix Mile C h C r t re s ek e e W C MOUNT DELANEY k Delane a r Sunshine Coast and Moreton Bay Council e y C Webster Road Res ra re r MELDALE e e b Brisbane, Ipswich, Lockyer Valley, Scenic Rim and TONE RD k k B S a IC E C E UM Banksia Beach E r P

e WAMURAN R WTP e BANKSIA

Elimbah Res B k U BEACH

U TOORBUL Wamuran Res areas. M WOORIM L Wamuran Tower MOODLU ag Somerset Council areas. Lake oo Kin BELLARA WAMURAN BASIN n g J Ning i C C oh re r ns e Somerset e C k Bellara Tower e r Bellara Res MOUNT MEE k ee K k ND RO IN IE IS LA AD NINGI Woorim Tower k G IB BONGAREE S BR e T e R r E C E GODWIN T Bongaree Tower m BEACH u re Riv r oltu er u bo e a Caboolture Tower SANDSTONE POINT N M C

U N UPPER CABOOLTURE T M ek E re E ROCKSBERG C n M R o ti O reek O OCEAN VIEW ta R e C Beachmere Res A s pi p A ym D ee Y G C h F a I b S E o MORAYFIELD L o Beachmere Tower D G re BURPENGARY EAST lt go u rs RD T C r e re e rr e o k M r

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k KING SCRUB C ree gary rpen Bay Bu DECEPTION BAY Little DAYBORO NARANGBA DEC S idelin EP Deception Bay Tower g C TIO Dayboro High Level Res re N ek B AY R SCARBOROUGH Narangba Tower O Dayboro Low Level Res A k D e re RUSH CREEK C NORTH LAKES s Petrie Depot y O e D Rothwell Res c AY L a Dayboro B D L O ARMSTRONG CREEK WTP R G O DAKABIN Boundary Rd Y S R KURWONGBAH M V a REDCLIFFE O Res 1, 2 A lt LACEYS CREEK N A P w o D I C MANGO HILL a r E th A t LAKE Z e P R r N in O C e KURWONGBAH A A r R e i D Margate Tower ve WHITESIDE e r k obble C Margate Res 1, 2, 3, 4, 5 K ree k Freshw Torrens Road Tower ater Kallangur Tower C re SAMSONVALE LAKE Petrie WTP ek KOBBLE CREEK North Pine SAMSONVALE G WTP JOYNER PETRIE Y WOODY POINT M

Petrie Tower I E LAWNTON R F e k O o Pin River e u r y A GRIFFIN CASHMERE e ull M r G D ile C s C d BRAY PARK re e e l d k i o MOUNT SAMSON T M MOUNT GLORIOUS CLEAR MOUNTAIN e n

O WARNER CLOSEBURN Ira Buckby Rd Res1, 2

BRENDALE i C edar CEDAR CREEK C re Lake ek EATONS HILL Wivenhoe Clear Mountain Res 1,2,3 YUGAR Eatons Hill Tower DRAPER k Eatons Hill Grounkd Res ee SAMFORD r k e C e e VALLEY r HIGHVALE n e a r C BUNYA g C n y Samford Downs Res 2 Honeywood Crt Samford Downs Res 1 Woodfern Crt o r d e n W h a is Albany Creek Low Level Res 1,2 SAMFORD f S e Riv g Albany Crk High Level Res - Bunyaville Forrest Park Pin er n th i ARANA u K o AD HILLS EVERTON O Samford Res3 (Bygotts Rd) FERNY HILLS HILLS S US R MO UNT G LO RIO S Hutton Rd Res2 - Arana Hills k A WIGHTS e MF Barber Road High Level Res re O R D 18 MOUNT NEBO MOUNTAIN C R OAD Hutton Rd Res1 - Caesar Rd rd CAMP MOUNTAIN fo Bar ber Rd Low Level Res City of Redland City Logan City m a S Brisbane Gold Coast Council Council City

7 Unitywater Drinking Water Quality Report 2015–16 Water supply sources

Unitywater purchases bulk (treated) water from Dayboro North Pine Rivers North Seqwater. Seqwater are responsible for the water This includes the Dayboro Township and surrounds that This includes all areas within the Sunshine Coast and This includes all areas within the Pine Rivers North catchment (the raw water source), the water treatment receive reticulated water. Noosa Regional Councils that receive reticulated water, Scheme that receives reticulated water. There are plants and the bulk water distribution up to the bulk i.e. Caloundra, Maleny, Maroochy North, Maroochy works in progress for Seqwater to directly feed the supply points. Please direct any queries around bulk General operation: South, Noosa and Railway Towns (excluding Kenilworth). Boundary Road Reservoirs from the NPI which are water supply arrangements to Seqwater a. Dayboro Water Treatment Plant. due for commissioning June 2017. This work is being (http://www.seqwater.com.au/contacts). i. The Dayboro WTP treats water extracted from General operation: undertaken due to the decommissioning of the Petrie bores located in the North Pine River and supplies c. This area is normally supplied from the Lake WTP. This will result in Petrie being included in the The purchased water enters the Unitywater network the Dayboro Scheme. Dayboro is not connected to Macdonald, Image Flat and Landers Shute Water South Region. either directly from a water treatment plant or via the the South East Queensland water grid. Treatment Plant (WTP) with supplementary supply via major pipeline (Northern Pipeline Interconnector- NPI). Water can be imported via water tankers if the NPI-2. General operation: The NPI was built by the Queensland government to necessary. i. The Lake Macdonald WTP treats raw water from d. This area is normally supplied from the Petrie Water provide long term water supply and security. The NPI Lake Macdonald and the Mary River to supply the Treatment Plant. allows water to be transferred between the Sunshine Kenilworth Noosa Scheme (includes Pomona and i. The Petrie WTP treats water extracted from Lake Coast, Moreton Bay and Brisbane Council. The NPI is This includes the Kenilworth Township and surrounds Cooroy). Kurwongbah and the North Pine River and supplies owned and operated by Seqwater in either a northerly that receive reticulated water. ii. The Image Flat WTP treats raw water from the Pine Rivers North Scheme . or southerly flow direction, with additional options Cooloolabin Dam, Wappa Dam and Poona Dam to available. Configuration is dependent on source water General operation: supply the Maroochy North Scheme. Bli Bli and South availability and regional demand and negotiated b. This area is normally supplied from the Kenilworth Coolum zones are supplemented by the Nambour This includes all areas within the Moreton Bay Regional between Seqwater and the Distribution Retail Entities. Water Treatment Plant. NPI-2 connection. Council that receive reticulated water, i.e. Bribie Island, i. The Kenilworth WTP treats water extracted from iii. The Landers Shute WTP Treats raw water from Caboolture, Redcliffe, Pine Rivers South & Woodford For water quality reporting Unitywater supply network bores located in the Mary River and supplies the Baroon Pocket Dam and supplies the Maroochy (excluding Dayboro and Pine Rivers North). is divided into 5 regions: Kenilworth Scheme. South, Maleny, Caloundra and Railway Towns 1. Dayboro Scheme. General operation: 2. Kenilworth Kenilworth is not connected to the South East e. North Pine WTP treats water from North Pine Dam 3. North Queensland water grid. Water can be imported via and supplies the Redcliffe and Pine Rivers South 4. Pine Rivers North water tankers if necessary. Scheme via the NPI. 5. South f. The Woodford, Caboolture and Bribie Water Supply Region are supplied primarily by Landers Shute WTP via the NPI.

9 Unitywater Drinking Water Quality Report 2015–16 Water quality summary

The Public Health Regulation 2005 requires that all water service providers in Queensland meet the regulated drinking Unitywater, like other water service providers in Australia, is obligated to provide customers with water that meets water quality standard; which is that more than 98% of all samples tested must return a negative result for E. coli the health related limits as specified in the Australian Drinking Water Guidelines 2011. In 2015-2016, there was (E. coli is used as an indicator for faecal contamination). one instance where the ADWG long-term health limit for chlorine (5mg/L) was not met at a reservoir in Albany Creek. Routine laboratory sampling identified the elevated result (5.3mg/L). Further testing throughout the network In 2015-2016, 99.95% of Unitywater’s samples were negative for E. coli. The graph below shows our performance over confirmed there were no other elevated levels. This was an isolated event and was resolved quickly. This site has now the past five years: been upgraded with an online unit that staff can monitor and respond to 24/7.

Public Health Regulation 2005 It should be noted that the ADWG limit is based on long-term exposure at the guideline level; meaning that it is Samples in which E.coli was not detected considered safe to consume water with 5.0mg/L chlorine for a lifetime. Given that drinking water usually contains chlorine at levels well below the guideline limit (refer to the graph below), a short term exceedence is not considered 100 to represent a health impact by health authorities. If you would like to seek further assurance on this please contact Queensland Health on 13 HEALTH (13 43 25 84).

99.5 Albany Creek High Levels total chlorine results

99 6

5 98.5

2 4 % of samples 98 3

mg/L as C1 2 97.5 1

0 97 2011-12 2012-13 2013-14 2014-15 2015-16 2/01/20132/03/20132/05/20132/07/20132/09/20132/11/20132/01/20142/03/20142/05/20142/07/20142/09/20142/11/20142/01/20152/03/20152/05/20152/07/20152/09/20152/11/20152/01/20162/03/20162/05/20162/07/2016 Reporting Period Weekly Results ADWG Lifetime Exposure Limit

Actual Performance Required Performance

11 Unitywater Drinking Water Quality Report 2015–16 Your suburb and its water supply region

Suburb Region Suburb Region Suburb Region Suburb Region

ALBANY CREEK...... South COOROY...... North LAWNTON...... Pine Rivers North PEREGIAN SPRINGS...... North ALEXANDRA HEADLAND...... North COTTON TREE...... North LITTLE MOUNTAIN...... North PETRIE...... Pine Rivers North ARANA HILLS...... South CURRIMUNDI...... North MALENY...... North POINT CARTWRIGHT...... North AROONA...... North D’AGUILAR...... South MARCOOLA...... North POMONA...... North BANKSIA BEACH...... South DAKABIN...... Pine Rivers North MARCUS BEACH...... North REDCLIFFE...... South BATTERY HILL...... North DAYBORO...... Dayboro MARGATE...... South ROSEMOUNT...... North BEACHMERE...... South DECEPTION BAY...... South MAROOCHYDORE...... North ROTHWELL...... South BEERBURRUM...... North DICKY BEACH...... North MERIDIAN PLAINS...... North SAMFORD...... South BEERWAH...... North DIDDILLIBAH...... North MINYAMA...... North SANDSTONE POINT...... South BELLARA...... South DONNYBROOK...... South MOFFAT BEACH...... North SCARBOROUGH...... South BELLMERE...... South EATONS HILL...... South MOOLOOLABA...... North SIPPY DOWNS...... North BIRTINYA...... North ELIMBAH...... South MOOLOOLAH VALLEY...... North SOLANDER...... South BLI BLI...... North EUMUNDI...... North MORAYFIELD...... South STRATHPINE...... South BONGAREE...... South EVERTON HILLS...... South MOUNT COOLUM...... North SUNRISE BEACH...... North BRAY PARK...... South EVERTON PARK...... South MOUNTAIN CREEK...... North SUNSHINE BEACH...... North BRENDALE...... South FERNY HILLS...... South MUDJIMBA...... North TANAWHA...... North BRIBIE ISLAND...... South FOREST GLEN...... North MURRUMBA DOWNS...... Pine Rivers North TEWANTIN...... North BUDDINA...... North GLASSHOUSE MOUNTAINS...... North NAMBOUR...... North TOORBUL...... South BUDERIM...... North GOLDEN BEACH...... North NARANGBA...... South TOWEN MOUNTAIN...... North BUNYA...... South GRIFFIN...... Pine Rivers North NEWPORT...... South TWIN WATERS...... North BURPENGARY...... South HARBOUR HILL...... North NINGI...... South UPPER CABOOLTURE...... South BURPENGARY EAST...... South HIGHWORTH...... North NOOSA HEADS...... North WAMURAN...... South CABOOLTURE...... South JOYNER...... South NOOSAVILLE...... North WARANA...... North CABOOLTURE SOUTH...... South KALLANGUR...... Pine Rivers North NORTH ARM...... North WARNER...... South CALOUNDRA...... North KEIL MOUNTAIN...... North NORTH LAKES...... Pine Rivers North WOODFORD...... South CALOUNDRA WEST...... North KENILWORTH...... Kenilworth PACIFIC PARADISE...... North WOODY POINT...... South CASHMERE...... South KINGS BEACH...... North PALMWOODS...... North WOOMBYE...... North CLEAR MOUNTAIN...... South KIPPA-RING...... South PARKLANDS...... North WOORIM...... South CLONTARF...... South KULANGOOR...... North PARREARRA...... North WURTULLA...... North COES CREEK...... North KULUIN...... North PELICAN WATERS...... North YANDINA...... North COOLUM BEACH...... North KUNDA PARK...... North PEREGIAN BEACH...... North YAROOMBA...... North COORAN...... North LANDSBOROUGH...... North

13 Unitywater Drinking Water Quality Report 2015–16 Drinking water quality performance Microbiological performance in detail

The table below briefly summarises drinking water performance across three categories, by each supply region. Number of Positive Required E.coli Actual E. coli Number of Microbiological performance is said to have met the performance requirement if more than 98% of samples from the Supply Region E. coli Results Performance Performance Met PHR Samples supply region returned a nil result for E. coli. (12 Mth) (12 Mth) (12 Mth)

Chemical (Health) performance is said to have met the performance requirement if the 95th percentile (a statistical Dayboro 146 0 98% 100% calculation) for each chemical is below the Australian Drinking Water Guidelines health value for that chemical. Kenilworth 147 0 98% 100% Chemical (Aesthetic) performance is said to have met the performance requirement if the average result for each North 1926 2 98% 99.90% chemical is below the Australian Drinking Water Guidelines aesthetic value for that chemical. Pine Rivers North 418 0 98% 100%

South 1635 0 98% 100% Microbiological Chemical (Health) Chemical (Aesthetic) Supply Region All 4272 2 98% 99.95% Performance Performance Performance

Dayboro PHR = Public Health Regulation 2005

Kenilworth There were two low level detections of E. coli in 2015-2016. E. coli is an organism used as a potential indicator North of water contamination, but can also be found in the natural environment. In all cases we investigated the circumstances around these detections and did not identify any source of contamination. Investigative water quality Pine Rivers North sampling undertaken at the time did not return any additional E. coli results, which would suggest that these events South were transient in nature and do not represent any systemic issues with the water supply.

means that performance requirement was met

15 Unitywater Drinking Water Quality Report 2015–16 Chemical performance in detail

Dayboro - Chemical (health) performance Dayboro - Chemical (aesthetic) performance

Number Number Min Max Average 95th ADWG Met Min Max Average 95th ADWG Met Parameter Units Of Parameter Units Of Result Result Result Percentile Guideline ADWG Result Result Result Percentile Guideline ADWG Samples Samples

mg/L as Arsenic mg/L 1 <0.001 <0.001 <0.001 <0.001 0.01 Alkalinity Total 10 43 104 85.20 103.10 a CaCO3 Bromate mg/L 4 <0.005 <0.005 <0.005 <0.005 0.02 Aluminium mg/L 46 <0.02 0.03 <0.02 0.02 0.2 Chlorate mg/L 20 <0.01 0.31 0.11 0.26 a Calcium mg/L 10 11 16 13.3 16.00 a Chlorine Free mg/L 150 <0.1 1.9 0.94 1.26 5 Chloride mg/L 3 32 38 35.67 37.90 250 Chlorine Total mg/L 150 <0.1 2 0.97 1.26 5 Colour Apparent PCU 46 <1 5.8 <1 2.35 15 Copper mg/L 24 <0.01 0.03 <0.01 0.02 2 Colour True PCU 46 <1 1.4 <1 <1 15 Fluoride mg/L 26 0.86 0.95 0.90 0.95 1.5 Conductivity uS/cm 149 245 342 299 337 b Haloacetic Acids ug/L 2 <60 <60 <60 <60 a Copper mg/L 24 <0.01 0.03 <0.01 0.02 1 Lead mg/L 24 <0.01 <0.01 <0.01 <0.01 0.01 Iron mg/L 46 <0.01 0.15 0.02 0.05 0.3 Manganese mg/L 46 <0.01 <0.01 <0.01 <0.01 0.5 Magnesium mg/L 10 7 11 8.60 10.55 a Nickel mg/L 24 <0.01 <0.01 <0.01 <0.01 0.02 Manganese mg/L 46 <0.01 <0.01 <0.01 <0.01 0.1 - Nitrate NO3 (calc) mg/L 42 0.07 0.65 0.19 0.37 50 pH pH Units 149 7.2 8.3 7.6 8.0 6.5-9.2 - Nitrite as NO2 mg/L 42 <0.02 <0.02 <0.02 <0.02 3 Potassium mg/L 3 1.6 1.7 1.67 1.70 a Trihalomethanes ug/L 22 18 82 42 63 250 Silica mg/L 2 14 14 14.00 14.00 80

a - No guideline limit Sodium mg/L 4 29 33 31 32.9 180

Sulphate mg/L 1 7.9 7.9 7.9 7.9 250

Temperature oC 149 16.9 29.3 23.7 28.1 a

mg/L as Total Hardness 10 59 83 68.70 81.65 200 CaCO3

Turbidity NTU 152 0.05 1.6 0.19 0.43 5

Zinc mg/L 24 <0.01 0.03 <0.01 0.02 3

a - No guideline limit b - ADWG guideline limit is for 600mg/L as total dissolved solids. This is approximately equal to a conductivity of 1000µS/cm.

17 Unitywater Drinking Water Quality Report 2015–16 Kenilworth - Chemical (health) performance Kenilworth - Chemical (aesthetic) performance

Arsenic mg/L 1 <0.001 <0.001 <0.001 <0.001 0.01 mg/L as Alkalinity Total 19 37 161 80.15 158.30 a CaCO3 Bromate mg/L 4 <0.005 0.007 <0.005 0.006 0.02 Aluminium mg/L 34 <0.02 0.03 <0.02 <0.02 0.2 Chlorate mg/L 20 0.06 0.27 0.15 0.27 a Calcium mg/L 12 14 18 16.75 18.00 a Chlorine Free mg/L 145 0.3 2.2 1.18 1.90 5 Chloride mg/L 3 14 37 29.00 36.90 250 Chlorine Total mg/L 145 0.5 2.2 1.22 2.00 5 Colour Apparent PCU 34 <1 <1 <1 <1 15 Copper mg/L 24 <0.01 <0.01 <0.01 <0.01 2 Colour True PCU 34 <1 1.4 <1 <1 15 Fluoride mg/L 24 0.16 0.91 0.50 0.89 1.5 Conductivity uS/cm 144 166 436 330 432 b Haloacetic Acids ug/L 2 <60 <60 <60 <60 a Copper mg/L 24 <0.01 <0.01 <0.01 <0.01 1 Lead mg/L 24 <0.01 <0.01 <0.01 <0.01 0.01 Iron mg/L 34 <0.01 <0.01 <0.01 <0.01 0.3 Manganese mg/L 34 <0.01 <0.01 <0.01 <0.01 0.5 Magnesium mg/L 12 4 10 7.08 10.00 a Nickel mg/L 24 <0.01 <0.01 <0.01 <0.01 0.02 Manganese mg/L 34 <0.01 <0.01 <0.01 <0.01 0.1 - Nitrate NO3 (calc) mg/L 31 0.13 1.27 0.40 1.14 50 pH pH Units 144 7.1 7.8 7.5 7.8 6.5-9.2 - Nitrite as NO2 mg/L 31 <0.02 <0.02 <0.02 <0.02 3 Potassium mg/L 3 <1 1 < 1.00 a Trihalomethanes ug/L 21 16 82 43 82 250 Silica mg/L 2 8 9 8.50 8.95 80

a - No guideline limit Sodium mg/L 4 11 53 32.5 53 180

Sulphate mg/L 1 20 20 20.0 20.0 250

Temperature oC 141 17.8 31.3 23.7 29.1 a

mg/L as Total Hardness 12 51 86 70.83 85.45 200 CaCO3

Turbidity NTU 147 <0.05 0.4 0.10 0.23 5

Zinc mg/L 24 <0.01 <0.01 <0.01 <0.01 3

a - No guideline limit b - ADWG guideline limit is for 600mg/L as total dissolved solids. This is approximately equal to a conductivity of 1000µS/cm.

19 Unitywater Drinking Water Quality Report 2015–16 North - Chemical (health) performance North - Chemical (aesthetic) performance

Arsenic mg/L 7 <0.001 <0.001 <0.001 <0.001 0.01 mg/L as Alkalinity Total 105 30 55 39.24 49.84 a CaCO3 Bromate mg/L 30 <0.005 0.01 <0.005 <0.005 0.02 Aluminium mg/L 1,268 <0.02 0.07 <0.02 0.02 0.2 Chlorate mg/L 199 <0.01 0.6 0.05 0.27 a Calcium mg/L 74 10 26 16.23 24.00 a Chlorine Free mg/L 3,350 <0.1 2.5 0.90 1.60 5 Chloride mg/L 21 12 49 23.19 42.00 250 Chlorine Total mg/L 3,350 <0.1 2.6 0.99 1.70 5 Colour Apparent PCU 1,268 <1 11 <1 1.90 15 Copper mg/L 400 <0.01 0.01 <0.01 <0.01 2 Colour True PCU 1,268 <1 1.3 <1 <1 15 Fluoride mg/L 393 0.18 0.97 0.84 0.90 1.5 Conductivity uS/cm 3,253 138 341 205 280 b Haloacetic Acids ug/L 20 <60 <60 <60 <60 a Copper mg/L 400 <0.01 0.01 <0.01 <0.01 1 Lead mg/L 400 <0.01 0.01 <0.01 <0.01 0.01 Iron mg/L 1,268 <0.01 0.45 0.01 0.04 0.3 Manganese mg/L 1,268 <0.01 0.04 <0.01 <0.01 0.5 Magnesium mg/L 74 2 10 5.24 8.00 a Nickel mg/L 400 <0.01 <0.01 <0.01 <0.01 0.02 Manganese mg/L 1,268 <0.01 0.04 <0.01 <0.01 0.1 - Nitrate NO3 (calc) mg/L 1,159 0.06 1.47 0.60 1.32 50 pH pH Units 3,253 6.6 9.2 7.6 8.2 6.5-9.2 - Nitrite as NO2 mg/L 1,159 <0.02 0.04 <0.02 <0.02 3 Potassium mg/L 21 1 2 1.40 1.90 a Trihalomethanes ug/L 215 5 140 53 98 250 Silica mg/L 20 4 11 8.15 10.05 80

a - No guideline limit Sodium mg/L 30 8 35 17.1 30.1 180

Sulphate mg/L 7 19 44 28.6 41.9 250

Temperature oC 3,238 15.1 29.5 23.1 27.4 a

mg/L as Total Hardness 74 42 81 62.00 72.35 200 CaCO3

Turbidity NTU 3,262 <0.05 14 0.19 0.42 5

Zinc mg/L 400 <0.01 0.03 <0.01 <0.01 3

a - No guideline limit b - ADWG guideline limit is for 600mg/L as total dissolved solids. This is approximately equal to a conductivity of 1000µS/cm.

21 Unitywater Drinking Water Quality Report 2015–16 Pine Rivers North - Chemical (health) performance Pine Rivers North - Chemical (aesthetic) performance

Arsenic mg/L 2 <0.001 <0.001 <0.001 <0.001 0.01 mg/L as Alkalinity Total 28 31 45 40.36 44.00 a CaCO3 Bromate mg/L 9 <0.005 <0.005 <0.005 <0.005 0.02 Aluminium mg/L 180 <0.02 0.07 <0.02 0.03 0.2 Chlorate mg/L 40 0.03 0.52 0.22 0.44 a Calcium mg/L 32 6 18 13.75 16.0 a Chlorine Free mg/L 454 <0.1 2.8 1.40 2.00 5 Chloride mg/L 6 20 30 24.50 29.75 250 Chlorine Total mg/L 454 <0.1 3.2 1.71 2.4 5 Colour Apparent PCU 180 <1 2.9 <1 1.20 15 Copper mg/L 37 <0.01 <0.01 <0.01 <0.01 2 Colour True PCU 180 <1 1.2 <1 <1 15 Fluoride mg/L 61 0.39 0.99 0.90 0.97 1.5 Conductivity uS/cm 452 207 274 246 266 b Haloacetic Acids ug/L 4 <60 <60 <60 <60 a Copper mg/L 37 <0.01 <0.01 <0.01 <0.01 1 Lead mg/L 27 <0.01 <0.01 <0.01 <0.01 0.01 Iron mg/L 180 <0.01 0.09 <0.01 <0.01 0.3 Manganese mg/L 180 <0.01 0.03 <0.01 <0.01 0.5 Magnesium mg/L 22 5 7 5.68 6.00 a Nickel mg/L 37 <0.01 <0.01 <0.01 <0.01 0.02 Manganese mg/L 180 <0.01 0.03 <0.01 <0.01 0.1 - Nitrate NO3 (calc) mg/L 166 0.21 0.76 0.54 0.70 50 pH pH Units 452 6.9 9.2 7.4 8.0 6.5-9.2 - Nitrite as NO2 mg/L 177 <0.02 0.17 <0.02 0.07 3 Potassium mg/L 6 1.8 2 1.90 2.00 a Trihalomethanes ug/L 44 35 150 75 110 250 Silica mg/L 4 3 4 3.75 4.00 80

a - No guideline limit Sodium mg/L 9 23 28 24.3 28 180

Sulphate mg/L 2 36 36 36.0 36.0 250

Temperature oC 452 16.5 29.7 24.2 28.5 a

mg/L as Total Hardness 22 38 63 55.73 61.95 200 CaCO3

Turbidity NTU 460 <0.05 11 0.15 0.26 5

Zinc mg/L 57 <0.01 0.13 <0.01 0.01 3

a - No guideline limit b - ADWG guideline limit is for 600mg/L as total dissolved solids. This is approximately equal to a conductivity of 1000µS/cm.

23 Unitywater Drinking Water Quality Report 2015–16 South - Chemical (health) performance South - Chemical (aesthetic) performance

Arsenic mg/L 6 <0.001 0.001 <0.001 <0.001 0.01 mg/L as Alkalinity Total 86 36 62 42.96 48.00 a CaCO3 Bromate mg/L 30 <0.005 0.007 <0.005 <0.005 0.02 Aluminium mg/L 916 <0.02 0.13 0.03 0.04 0.2 Chlorate mg/L 220 <0.01 0.76 0.20 0.56 a Calcium mg/L 74 11 21 14.34 19.00 a Chlorine Free mg/L 2,653 <0.1 4.5 0.40 1.5 5 Chloride mg/L 21 14 28 21.67 27.00 250 Chlorine Total mg/L 2,653 <0.1 5.3 1.14 3.00 5 Colour Apparent PCU 917 <1 12 1.05 2.12 15 Copper mg/L 311 <0.01 0.02 <0.01 <0.01 2 Colour True PCU 917 <1 1.8 <1 1.20 15 Fluoride mg/L 344 0.73 0.95 0.87 0.92 1.5 Conductivity uS/cm 2,556 156 395 226 258 b Haloacetic Acids ug/L 22 <60 <60 <60 <60 a Copper mg/L 311 <0.01 0.02 <0.01 <0.01 1 Lead mg/L 311 <0.01 <0.01 <0.01 <0.01 0.01 Iron mg/L 916 <0.01 0.02 0.01 0.03 0.3 Manganese mg/L 916 <0.01 0.05 <0.01 <0.01 0.5 Magnesium mg/L 74 3 8 4.84 6.00 a Monochloramine mg/L 1,878 <0.02 2.4 0.48 1.71 3 NH2CI Manganese mg/L 916 <0.01 0.05 <0.01 <0.01 0.1

Nickel mg/L 311 <0.01 <0.01 <0.01 <0.01 0.02 pH pH Units 2,556 7.2 9.3 7.7 8.2 6.5-9.2

- Nitrate NO3 (calc) mg/L 1,699 0.04 3.87 1.46 2.83 50 Potassium mg/L 21 1.3 2.1 1.80 2.10 a

- Nitrite as NO2 mg/L 2,112 <0.02 1.86 0.16 0.69 3 Silica mg/L 22 4 9 6.36 9.00 80

Trihalomethanes ug/L 232 5 150 55 110 250 Sodium mg/L 30 11 24 18.3 23.6 180

Sulphate mg/L 7 19 25 22.1 24.7 250 a - No guideline limit Temperature oC 2,543 14.8 31.8 23.7 28.5 a

mg/L as Total Hardness 74 42 75 55.81 63.00 200 CaCO3

Turbidity NTU 2,571 <0.05 4.5 0.14 0.26 5

Zinc mg/L 331 <0.01 0.02 <0.01 0.01 3

a - No guideline limit b - ADWG guideline limit is for 600mg/L as total dissolved solids. This is approximately equal to a conductivity of 1000µS/cm.

25 Unitywater Drinking Water Quality Report 2015–16 Unitywater drinking water project snapshot 2015-2016

International Certification Improving our disinfection facilities Unitywater has become the first distributor-retailer in Disinfection (i.e. chlorination) is an essential south east Queensland to achieve international food requirement to supply safe drinking water and is safety certification ISO 22000: 2005. Independent recommended by the World Health Organisation. auditors assessed our Drinking Water Management This project will improve water quality performance System in February. They assessed our operational by installing new analysers, reservoir mixers and practices, work procedures, process/document control, dosing units. When the project is finalised all and much more. ISO 22000 certification is best practise secondary disinfection facilities will be visible on the water quality management and provides assurance to online monitoring platform shared by Seqwater and Unitywater. This will allow us to share information at our customers, the business and regulators. key locations (i.e. water treatment plants, secondary disinfection facilities, strategic network locations) and Smarter tools to analyse customer enquiries greatly assist our people to manage the network and Unitywater has developed software to recognise continue to meet customer standards. patterns in customer enquiries received by our contact centre. The software will help us quickly identify and pinpoint potential water quality issues. This innovation will save time, improve responsiveness and most importantly improve customer service.

Improving the condition of our water assets To maintain the quality of the water supply, we occasionally need to clean our water mains. Drinking water carries tiny amounts of natural sediment, which over years settle as deposits in water pipes. 54 km of water mains in Caboolture central were cleaned using an innovative method called Ice Pigging (forces an ice slurry through the main). The cleaning was very effective and sediment was removed improving the water quality in this area.

Ozone (disinfectant) technology was also trialled in 2015-2016 as an alternative technology to chlorine for commissioning and disinfecting water mains. Unitywater is constantly looking for efficiencies offered by innovative technologies. In 2016-2017 we will trial an alternative mains cleaning technology that unlike the other technologies uses no extra water!

Unitywater Drinking Water Quality Report 2015–16 Food SafetyManagementISO22000 Quality SystemsISO9001 Environmental ISO14001 OH&S ISO4801 Unitywater hascertificationto www.unitywater.com F: (07)54318288 T: 13000UNITY(1300086489) PO Box953,CabooltureQLD4510 Ground Floor,33KingStreet,Caboolture,QLD Head Office ABN: 89791717472

ACCREDITATION WORLD RECOGNISED MANAGEMENT SYSTEMCERTIFIEDTO REGN Number:50000079FSMS2013 AS/NZS ISO22000:2005 SAFETY FOOD

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